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Question about Throttle Body Size (too big)?

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Old Aug 8, 2009 | 05:12 PM
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deedubb's Avatar
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Default Question about Throttle Body Size (too big)?

Hello. I have a Maggie MP112 blower for my LS6 CTS-V. I am considering having the blower ported. My question is, If I port the Maggie, will there be any benefit in going over 90mm with the Throttle body such as a ported LS2 TB to 92mm or a RevExtreme 95mm TB or Nick Williams 96mm TB. These are the only drive by wire TB's that I've been able to find and am not sure if they would be worth it.

Thanks,
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Old Aug 9, 2009 | 01:28 AM
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If the blower inlet is actualy bigger than 90mm, any gain in t.b. size will be a gain in hp. Because the blower has to suck air through the t.b. instead of pushing it through like a turbo/procharger would , your gains will be bigger than if you were to swap t.b.'s on a procharger/turbo setup.
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Old Aug 9, 2009 | 06:50 PM
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Thanks for taking the time to reply.

I found someone who is working on building me a custom larger snout to accommodate a larger TB for my maggie. As it sits now, the stock snout on my blower is 90mm so going over 90mm on my TB would be worthless.

Thanks again.
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